Will I gain much in performance by upgrading RAM in my Dell Optiplex GX280 small desktop from 2 GB (2x 1GB DIMMs) to 3 GB (3x 1GB DIMMs)? I understand the 32-bit OS will not recognize >3GB so that's why I'm not shooting for 4GB (the physical maximum of this machine). The machne runs Win7 32-bit Home Premium OS and is rather slow. The alternative is to jump to a new machine, probably a i5 processor laptop (trying to delay that expense, if practical).